* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html,
body,
#app {
    width: 100%;
    height: 100%;
}

ul,
li {
    list-style: none;
}

button {
    cursor: pointer;
}

.el-card {
    margin-top: 20px;
}

.el-table {
    margin: 20px 0;
}